High DTI loans are those where the total debt is six times greater than the borrower's annual income. For instance, if an individual earns $100,000 per year, a high DTI loan would be one where the total debt exceeds $600,000. APRA's decision to impose this cap is driven by concerns over the increasing number of borrowers taking on substantial debt relative to their income, which could pose systemic risks to the financial sector.

According to APRA, approximately 4% of new owner-occupier loans and 10% of new investor loans currently exceed the six-times income threshold. While these figures may seem modest, the regulator is taking a proactive approach to prevent potential financial instability. APRA Deputy Chair John Lonsdale stated, "Although broader risks are contained, we have seen in the past that they can build rapidly when interest rates are low or declining, borrowers extend themselves, and competition among banks for new mortgage lending intensifies, which can lead to easing lending standards."

The introduction of this cap aligns Australia with international practices. Countries such as Ireland, the UK, Norway, New Zealand, and Canada have implemented similar restrictions to curb high-risk lending. For example, Ireland has maintained a 15% cap on loans above 3.5-4 times the borrower's income since 2015, while the UK has had a cap set at loans that are 4.5 times income since 2014.

For prospective homebuyers, this policy change underscores the importance of maintaining a healthy debt-to-income ratio. Borrowers should assess their financial capacity and consider the long-term implications of taking on substantial debt. Financial advisors recommend that individuals aim for a DTI ratio below six to ensure manageable repayment obligations and to enhance their eligibility for home loans under the new regulations.

In summary, APRA's forthcoming cap on high DTI home loans is a strategic move to bolster the resilience of Australia's financial system. By limiting the proportion of high-risk loans, the regulator aims to safeguard both borrowers and lenders from potential economic downturns and ensure the stability of the housing market.

Author: Paige Estritori
Published: Sunday 25th January, 2026

Please Note: If this information affects you or is relevant to your circumstances, seek advice from a licensed professional.

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